Attacks on layer two of the OSI model Seven layers of OSI In 1977 a model called Open Systems Interconnection (OSI) was proposed‚ with the aim to establish an interoperability standard for different vendor products. This model defines several layers related to data transfer‚ from the lowest (physical) to the highest (application) layer. They have a strong dependence upon one another and headers are usually added when traversing from a lower layer to a higher one. The seven layers are: Layer 1 -
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"Attack" is a poem written in 1917 by Siegfried Sassoon while he was convalescing from his wounds in a hospital in Scotland. He was a soldier who fought in the First World War. Attack is a short‚ 13-line poem written in speech rhythm with some rhyme. The poem is described in a very vivid way which makes the reader think that the author himself witnessed the scene. The poem begins with the poet describing the setting of the poem. The landscape is in a battlefield where there are still remains of previous
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26/11 Mumbai Attacks Terrorism can be found all over the world. Terrorists are from various nationalities. Terrorist have committed several attacks and have caused several people to lose their loved ones. Anyone can be a victim of terrorism. In 2008 Mumbai attacks‚ there were eight more attacks in financial capital of India‚ Mumbai‚ including 26th November 2008. It was one of major attack from the eight attacks in Mumbai. The attacks‚ which widespread global condemnation‚ began on Wednesday
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Unit of Measurement I. Convert each angle to a decimal in degrees. 1. 40° 30’ 2. 60° 60’ 60" II. Convert each angle to D° M’ S" form. 1. 40.3° 2. 118.255° III. Evaluate the following. 1. Complement of 74° 31’ 43" 2. Supplement of 105° 24’ 56" Activity No. 1.2 Unit of Measurement I. Convert each angle in degrees to radians. 1. 67.5°
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On september 11th 2001 a series of 4 terrorist attacks by Al-Qaeda occurred killing almost 3000 people and injuring over 6000. This terrorist attack resulted in the destruction of the world trade centre and overwhelming damage to nearby buildings. Many studies and investigations have been performed by social scientists looking into the attack‚ resulting in many different answers and also conspiracies. As displayed in the information provided below‚ anthropologists‚ sociologists and psychologists
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Attack by a bear Whenever I look out of the window and see the woods I would always recall the horrendous night. It was a beautiful evening‚ with the eastern wind blowing‚ perfect for a camping trip. I decided to call up a few of my good friends to come along with me for a short camping trip in the nearby Garapas Woods. One hour later‚ we met at the start of the hiking trail through the woods. Everybody had their equipment packed and was all ready to go. As we walked along the snake like
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out in the deeper water‚ and all of a sudden‚ a dorsal fin pops out. For everyone on the beach who sees it‚ music from Jaws starts playing in their heads. The swimmer does not even notice it‚ and in a few seconds‚ a great white shark veraciously attacks him. This is what comes to mind when most people think of sharks‚ but they are not really just man-eating monsters of the sea. Sharks are a fascinating group of fishes that strike fear into the minds of humans‚ but they are nothing to be afraid
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Story: Woolwich Attack On May 22 2013‚ a British Army soldier named Drummer (Private) Lee Rigby of the Royal Regiment of Fusiliers was killed by two men in Woolwich‚ southeast London. Rigby was off duty whilst walking down Wellington Street at the time of the attack. At first he was run down with a car‚ then the attackers used knives and a cleaver to stab him which resulted in his death. They then dragged him onto the road and waited for police to arrive. Five minutes after the attack‚ armed police
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Afghanistan: Drone attacks: The United States government‚ led by the Central Intelligence Agency’s Special Activities Division‚ has made a series of attacks on targets in northwest Pakistan since 2004 using drones (unmanned aerial vehicles). Under the George W. Bush administration‚ these controversial attacks were called a part of the US’ "War on Terrorism" and sought to defeat the Taliban and Al-Qaeda militants who were thought to have found a safe haven in Pakistan. Most of these attacks are on targets
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context‚ a myocardial infarction can be further subclassified into a ST elevation MI (STEMI) versus a non-ST elevation MI (non-STEMI) based on ECG changes.[14] The phrase heart attack is sometimes used incorrectly to describe sudden cardiac death‚ which may or may not be the result of acute myocardial infarction. A heart attack is different from‚ but can be the cause of cardiac arrest‚ which is the stopping of the heartbeat‚ and cardiac arrhythmia‚ an abnormal heartbeat. It is also distinct from heart
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